Ace the Wyoming Pesticide Applicator Exam 2026 – Conquer the Green Frontier!

Question: 1 / 605

Which situation is considered IDLH by OSHA?

A) Low oxygen levels of 25% by volume.

B) High oxygen levels of 19.5% by volume.

C) Oxygen levels below 19.5% by volume.

An IDLH (immediately dangerous to life or health) situation, as defined by OSHA (Occupational Safety and Health Administration), is one where workers are exposed to harmful levels of substances that may cause immediate or delayed irreversible health effects or death. In this case, the oxygen levels below 19.5% by volume would be considered IDLH as it falls below the minimum threshold for safe levels of oxygen in the air. The other options, including low oxygen levels of 25% by volume and high oxygen levels of 19.5% by volume, would not be considered IDLH since they are above the recommended 19.5% threshold. The option of oxygen at 20% volume with a scent warning may also not necessarily indicate an IDLH situation, as the scent warning may notify workers of potential danger but does not necessarily mean the oxygen levels are at a harmful level. Therefore, the correct answer is C.

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D) Oxygen at 20% volume with scent warning.

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